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5. 脊椎動物和海鞘類生物(tunicates)共同具有下列哪項特徵?(A) 適應演化成適合進食的顎(B) 頭部高度專化現象(cephalization)(C) 擁有神經脊(neural crest)
問題詳情
5. 脊椎動物和海鞘類生物(tunicates)共同具有下列哪項特徵?
(A) 適應演化成適合進食的顎
(B) 頭部高度專化現象(cephalization)
(C) 擁有神經脊(neural crest)形成結構
(D) 具有脊索(notochord)和背側中空神經索(nerve cord)
參考答案
答案:D
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脊索動物特徵:脊索、背側中空神經索、★★...
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